Tesla CEO Elon Musk said on Wednesday amidst rumors that President Donald Trump is considering leaving the Paris Accord that he would step down from the president’s advisory councils if Trump opted out of the Paris Agreement.

The Paris Accord, a climate agreement, was opened for signature on Earth Day 2016, and to date, representatives of 195 countries worldwide have signed the accord, and the agreement went into effect in November 2016.

It addresses and analyzes greenhouse gas emissions and is set to “combat climate change and adapt to its effects.”

When Musk was asked on Twitter what his response would be if the president decided to pull the U.S. out of the agreement, he said, “Will have no choice but to depart councils in that case.”

Musk, also the founder of SpaceX, sits on the president’s manufacturing jobs council, as well as his strategic and policy forum, and the president’s infrastructure council.

He tweeted Wednesday that he has done all he could in his advisory capacity to remain in the accord.

“Don’t know which way Paris will go, but I’ve done all I can to advise directly to POTUS, through others in WH & via councils, that we remain,” he said.

Trump on Wednesday tweeted that he will announce a White House decision on the Paris Accord “over the next few days.”

“I will be announcing my decision on the Paris Accord over the next few days,” Trump tweeted. “MAKE AMERICA GREAT AGAIN!”

Initial reports have indicated that Trump will remove the United States from the Paris Accord, but that no firm decision has been made.